公开(公告)号：WO1991010938A1

公开(公告)日：1991-07-25

申请号：PCT/EP1991000069

申请日：1991-01-12

Applicant: KODAK LIMITED ,  EASTMAN KODAK COMPANY ,  LEYSHON, Llewellyn, James

Inventor： KODAK LIMITED ,  EASTMAN KODAK COMPANY

IPC: G03C01/34

CPC classification number: G03C1/34 ,  G03C1/035 ,  G03C7/30 ,  G03C7/3022 ,  G03C7/39216

Abstract: A photosensitive silver chloride emulsion comprising at least 90 % silver chloride whose keeping properties have been improved by the incorporation therein of a bisphenol derivative having two linked phenol rings wherein the hydrogen atom of one of the phenolic hydroxy groups is replaced by a blocking group which is a substituent other than hydrogen and at least one of the phenol rings is substituted.

Abstract translation: 一种含有至少90％氯化银的感光氯化银乳剂，其保持性能通过掺入具有两个连接的酚环的双酚衍生物而得到改善，其中一个酚羟基的氢原子被封闭基团取代， 除氢以外的取代基和至少一个酚环被取代。

公开(公告)号：WO1991010925A1

公开(公告)日：1991-07-25

申请号：PCT/US1990007537

申请日：1990-12-24

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  PITEK, John, George ,  DEY, Thomas, William ,  HUMBEL, William, David ,  VANDENBERG, Donald, Evan

IPC: G02B05/00

CPC classification number: G01M11/0257

Abstract: The Foucault or knife-edge method may be employed for testing an optical surface defined by an imaging device, for example, a mirror surface, to ascertain its characteristics, for example, whether or not it is a source of optical aberrations. To this end, the traditional Foucault knife-edge method typically employs a knife-edge that comprises a metal razor blade. The present invention, in contrast, provides a novel optical element suitable for employment in the Foucault method, and features a knife-edge that comprises a transparent substrate (34), and a coating material (38) that can adhere to at least a portion of the transparent substrate, thereby forming at least one knife-edge pattern (40).

Abstract translation: 可以采用福柯刀或刀刃法来测试由成像装置例如镜面限定的光学表面，以确定其特性，例如，其是否是光学像差源。 为此，传统的Foucault刀刃法通常采用包括金属剃刀刀片的刀刃。 相反，本发明提供了一种适用于福柯方法的新型光学元件，并且具有包括透明基板（34）的刀刃和可以粘附至少部分的涂层材料（38） 从而形成至少一个刀刃图案（40）。

公开(公告)号：WO1991010310A1

公开(公告)日：1991-07-11

申请号：PCT/US1990007344

申请日：1990-12-13

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  SARRAF, Sanwal, Prasad ,  BROWNSTEIN, Scott, Alan ,  BARRY, Michael, James

IPC: H04N01/032

CPC classification number: B41J2/48 ,  B41J2/471 ,  H04N1/047 ,  H04N1/1135 ,  H04N2201/02425 ,  H04N2201/02439 ,  H04N2201/03158 ,  H04N2201/0471 ,  H04N2201/04724 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04734 ,  H04N2201/04739 ,  H04N2201/04744 ,  H04N2201/04767 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04794

Abstract: A thermal printer is disclosed which is particularly suitable for making slide transparencies. The printer includes a laser which provides the necessary thermal energy to effect a transfer of dye from a donor element to a receiver element. A beam from the laser passes through suitable optics and is scanned onto the receiver element by a galvonometer. In order to insure the transfer of dye from the donor at a suitable resolution and with sufficient speed, a relatively high-powered single transverse mode coherent laser is used.

公开(公告)号：WO1991010287A1

公开(公告)日：1991-07-11

申请号：PCT/US1990007383

申请日：1990-12-18

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  GOTTA, James, Morgan, III ,  WEINER, Frank

IPC: H03K19/018

CPC classification number: H03K19/01806

Abstract: A circuit for interfacing (parallel format) TTL signals with a serial format ECL signal port includes a parallel-to-serial shift register, a first voltage level shifting stage and an output, TTL-ECL level shifting stage, connected in cascade. Each of the shift register and the first level shifting stage is powered exclusively by an on-board TTL power supply. The output level shifting stage is powered by the on-board TTL supply and from an external connection to a downstream module. The serial output of the shift register is a ''positive ECL'' signal having a voltage swing corresponding to that of conventional negative polarity ECL signals. From this signal the first level shifting stage produces an intermediate level (quasi analog) signal which transitions between reduced or intermediate high and low voltage levels about a switching level corresponding to that (e.g. +1.5 volts) of normal TTL signals but having the ECL-type voltage swing. This intermediate level TTL type signal is coupled to the output TTL-ECL voltage level shifting stage to which the signal ECL output port to be coupled to the downstream CRT unit is connected. Since the output stage is readily accessible for connection to an external power supply, specifically a -5 volt ECL supply rail of an adjacent, module, it is powered by both the internal TTL supply, bus and by an external jumper connection to the module to which the output ECL signals are to be supplied.

公开(公告)号：WO1991010168A1

公开(公告)日：1991-07-11

申请号：PCT/US1990007600

申请日：1990-12-21

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  FRIOUR, Gérard ,  STRAUEL, Philippe ,  CHAMBONNET, Albert ,  IGIER, Christian

IPC: G03C07/30

CPC classification number: G03C7/3029

Abstract: The present invention relates to a multilayer product for color photography having improved sensitivity. The product comprises under one of the blue sensitized layers or under each blue sensitized layer, an intermediate layer comprising non-photosensitive silver halide grains having a thickness ranging from 0.03 to 0.2 mu m.

Abstract translation: 本发明涉及具有改进的灵敏度的用于彩色摄影的多层产品。 该产品包括在一个蓝色敏化层之下或在每个蓝色敏化层之下，包含厚度为0.03至0.2μm的非光敏卤化银颗粒的中间层。

公开(公告)号：WO1991010158A2

公开(公告)日：1991-07-11

申请号：PCT/US1990007297

申请日：1990-12-17

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  WEAVER, Thomas, C. ,  WHEELER, Richard, B.

IPC: G03B15/05

CPC classification number: G03B15/05 ,  G03B7/16 ,  G03B2215/0528 ,  G03B2215/0553

Abstract: A flash system (10) and method for providing artificial illumination for image capture wherein a source of flash illumination operates selectively in a first mode for projecting light in a first direction (16) toward an indirect reflecting surface (18) to illuminate a subject (20) indirectly and in a second mode for projecting light in a second direction (82) to illuminate the subject (20) directly, electromagnetic radiation reflected directly from the indirect reflecting surface is sensed (40) directly to provide a signal containing information about the indirect reflecting surface, and the information contained in the signal is utilized to control (42) the selective projection of light in the first and second directions to control the quantities of indirect and direct light which illuminate the subject. In one aspect, electromagnetic radiation such as infrared radiation is transmitted to the indirect reflecting surface in a manner such that a portion of the radiation is reflected from the surface back to the flash system where it is detected to provide a signal containing information relating to the distance between the surface and a given location in the flash system. In another aspect, light reflected directly from the indirect reflecting surface during operation of the source in the first or indirect flash mode is received directly by a sensor in the system to provide a signal indicating the presence of the indirect reflecting surface.

Abstract translation: 一种闪光灯照明系统（10）以及用于获得用于图像捕获目的的人造照明的方法。 闪光灯光源在第一光投射模式中在第一方向（16），间接反射表面（18），间接照明物体（20）和第二光投射模式下选择性地操作。 沿第二方向（82）投射光以直接照亮物体（20）。 由间接反射表面直接反射的电磁辐射被直接感测（40）以产生包含关于间接反射表面的信息的信号，并且包含在这些信号中的信息被用于控制（42）选择性注入 在第一和第二方向上的光，以调节照射物体的直接和间接光的量。 在一个方面，诸如红外辐射之类的电磁辐射被传输到间接反射表面，使得一部分辐射从表面反射回到闪光灯照明系统，在那里它被检测到，使得 产生包含关于表面和闪光灯系统中的给定位置之间的距离的信息的信号。 在另一方面，当源在第一照射模式或间接照射下操作时直接从间接反射表面反射的光直接由系统中的传感器接收以产生指示存在的信号 的间接反射面。

公开(公告)号：WO1991009740A1

公开(公告)日：1991-07-11

申请号：PCT/US1990007300

申请日：1990-12-17

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  MATOUSHEK, Robert, James

IPC: B41J29/00

CPC classification number: B41J2/325

Abstract: An improved fusing device for a thermal transfer printer (10) having a print system for producing a receiver sheet bearing a transferred dye image. The fusing device (20) includes a fuser drum (22) comprising a heat conducting rigid cylinder shell portion (23) and three roller assemblies (25, 26, 27) constructed to rotate on parallel axes respectively at different locations around the periphery of the drum so as to constrain the path of drum rotation. One roller assembly (27) is coupled to a rotary drive, and one (26) is mounted for displaceable movement toward and away from the drum and resiliently urged toward the drum (22).

公开(公告)号：WO1991009739A1

公开(公告)日：1991-07-11

申请号：PCT/US1990007299

申请日：1990-12-17

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  MATOUSHEK, Robert, James ,  FISHER, Terrence, Lee ,  WHRITENOR, James, Andrew

IPC: B41J13/22

CPC classification number: B41J13/223

Abstract: Apparatus for clamping receiver sheets to the print drum (11) of a thermal transfer printer. The apparatus includes a clamp assembly (40) mounted for radial movement and having a clamp strip extending over the drum (11) periphery and an interior longitudinal body coupled to that strip at a plurality of axially spaced locations. A longitudinal lever member extends axially within the drum from a pivot point (93) at one drum end to an actuation arm (30) at the other drum end and has a pivot arm coupled to a central portion of the clamp body. Springs (62) urge the clamp assembly radially inwardly and an actuator mounted on the other drum end selectively moves the lever member radially outwardly.

公开(公告)号：WO1991009490A2

公开(公告)日：1991-06-27

申请号：PCT/US1990007310

申请日：1990-12-17

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  ZEISE, Eric, K.

IPC: H04N01/40

CPC classification number: H04N1/4056 ,  G06F1/025

Abstract: A non-impact dot printer such as an LED printer, records grey levels of each dot by pulse width modulating the exposure on-time for each LED. The on-time of each LED for each exposure is controlled by comparing a count, representing an exposure time with a time changing output of two counters. The improved printer and method of printing employs two counters that are counting at slightly different clock rates (or at the same rates but the counts change at slightly different times). A multiplexer associated with the comparator selects which counters output is to be compared with the comparator. A particular LED may be selectively illuminated for a picture element time period determined either solely by one or the other of the counters, or by the count of one counter and the count of the other. Because of the small difference between the clock rates used to change the outputs of the counter, uniformity control of the LED's can be significantly improved by allowing fine control of LED on time.

Abstract translation: 诸如发光二极管打印机之类的无冲击点式打印机通过对每个发光二极管的曝光时间进行脉宽调制来记录每个点的灰度级。 。 通过将表示曝光时间的计数与由两个计数器产生的时间变化结果进行比较来调整每个发光二极管的每个曝光时间。 改进的打印机和打印过程使用两个计数器，它们的计数时钟速率略有不同（或者在相同的时钟速率下计数，但在稍微不同的时间计数发生变化）。 与比较器相关的多路复用器通过选择来确定计数器的哪个输出结果必须通过比较器进行比较。 特定的发光二极管可以通过仅一个或另一个计数器或者一起通过计数其中一个计数器并计数另一个计数器来选择性地照射给定像素时间。 。 考虑到用于改变仪表输出结果的时钟速率之间的小差异，通过允许对发光二极管的曝光时间进行微调，可以显着提高发光二极管设置的一致性。

公开(公告)号：WO1991009487A1

公开(公告)日：1991-06-27

申请号：PCT/US1990007309

申请日：1990-12-17

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  NG, Yee, S.

IPC: H04N01/23

CPC classification number: H04N1/4056 ,  G06F1/025

Abstract: A grey level non-impact recording apparatus and method provides data signals to a recording head having N recording elements per inch so that M sub-lines per inch can be recorded, wherein M is greater than N. In a specific example of a 400 dpi LED printhead, grey level data is sent to the printhead at a rate to record say 2400 lines per inch to provide a resolution of 400 dpi x 2400 dpi grey level sub-pixels. Data from a data source may have a pixel resolution of 1/400' x 1/400' and the apparatus employs six sub-lines to record each of these pixels. The control for controlling the duration of recording of each LED for each sub-line includes a comparator which receives a grey level data signal at one input terminal and pulses representing a time changing count at another terminal. The count is produced by counter means and changes in response to signals from a clock means. Fine control over exposure, particularly at the 'toe' of the exposure curve, is provided by a vernier-like clocking scheme wherein the counter means responds to alternate master clocks during recording of alternate sub-lines. The master clocks generate clock pulses at slightly different frequencies which thereby affect fine differences in the timing of the pulses from the counter means. In one embodiment the clock means may be a programmable non-linear clock and provides a greater range of grey level recording.